Vitess: Missing authorization on vttablet /debug/vrlog exposes live VReplication SQL data

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-65959
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-18 19:17:00 UTC
Updated2026-09-18 20:05:53 UTC
DescriptionVitess is a database clustering system for horizontal scaling of MySQL. In 24.0.2 and earlier, the /debug/vrlog endpoint registered by addHttpEndpoint() in go/vt/vttablet/tabletmanager/vreplication/vrlog.go invokes vrlogStatsHandler() without acl.CheckAccessHTTP(r, acl.DEBUGGING), unlike comparable debug endpoints. A remote caller who can reach the vttablet debug HTTP port can bypass the configured security policy and stream VrLogStats data produced from NewVrLogStats().Send(), including literal SQL statements and bound application values from MoveTables, Reshard, Materialize, and vitess-strategy Online DDL workflows

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.003930000 probability, percentile 0.332160000 (date 2026-09-21)

Problem Types: CWE-862 | CWE-862 CWE-862: Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Vitessio Vitess affected <= 24.0.2 Not specified

References

ReferenceSourceLinkTags
github.com/vitessio/vitess/security/advisories/GHSA-mhc4-g3wh-cw7m 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/vitessio/vitess/commit/657662e78bde1c82df680e9cc43a686d619f8094 [email protected] github.com
github.com/vitessio/vitess/commit/d929225a450027406687d27af8dca45620945ceb [email protected] github.com
github.com/vitessio/vitess/commit/4c58cd70edc6b03d61cb65842c342ac08341e64f [email protected] github.com
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